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Radium Engineering MPFST-R Pumps Not Included Bosch Br540 Or DW400

$1,219.95
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Description

A fuel surge tank (FST) is designed to prevent fuel starvation on vehicles with inadequate fuel tank baffling. Fuel is supplied to the surge tank by a lift pump, which in most cases is the OEM in-tank fuel pump. The volume of fuel inside the surge tank acts as a buffer to always keep the FST pump(s) supplied with fuel, even if the lift pump starves momentarily.

This volume is maintained by the lift pump as well as the fuel returning from the built-in fuel pressure regulator. Excess fuel in the surge tank is returned back to the vehicle's main fuel tank. The surge tank also provides a quick and easy way to upgrade any standard fuel system without opening the stock fuel tank. This is an excellent fueling solution for vehicles installing large demand power upgrades such as forced induction.

The Radium Engineering MPFST-R is the perfect solution for simplifying a high power vehicle experiencing fuel starvation during aggressive driving. When compared to a typical surge tank, there is one less port fitting. Instead, the built-in regulator returns low pressure fuel directly into the surge tank negating the need for an external FPR return line

This MPFST-R will allows the installation 1, 2, or 3 of the pumps listed below. It will include all necessary parts to install the pumps into the surge tank except for the pump(s) themselves.

 

BUILT-IN REGULATOR
RA-series regulators feature the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased.

To aid in adjusting pressure, there are incremental detents that provide haptic feedback to the user. Every detent equates to about 1psi of adjustment depending on current fuel pressure. Furthermore, RA-series regulators feature a 360 degree swiveling vacuum reference port that is double O-ring sealed. This is the first in the industry. It permits the installer to quickly point the vacuum fitting in any direction with no tools required.

The MPFST-R features an 1/8" NPT fuel pressure port at the regulator. An 1/8" plug is provided, or a fuel pressure gauge or sensor can be installed to adjust and monitor fuel pressure.

The built-in regulator is 1:1 vacuum reference capable. There are 4 interchangeable 10-32 threaded vacuum port fittings provided to suit different vacuum hose types. The reference port can also be plugged with the included screw for constant fuel pressure.

 

Compatibility:

  • Deatschwerks DW400(2)
  • Bosch BR540(1)(2)

(1)These pumps do not feature a check valve. Use only as the primary pump in a staged pump installation.
(2)The physical size of these pumps will cause an interference with the optional fuel level switch in one of the installation positions. For this reason, only 2 pumps can be installed in this surge tank when using the level switch.

Technical Specifications

  • All pumps feed out through the single outlet port from the integrated fuel pressure regulator.
  • This single feed line will dead-end at the engine (no return line).
  • The "PUMP OUTLET" port is a 10AN ORB female and comes preassembled with an adapter fitting for 8AN male.
  • The "OVERFLOW" and 'SUPPLY" ports are female 8AN ORB threaded and come preinstalled with 6AN male adapter fittings.
  • These adapter fittings can be swapped out with different sizes (sold separately).
  • For cars without a return port on the fuel tank, one must be created.
  • The overflow port can not be capped off.
  • See the technical data sheet on the right for more information on creating a return port.
  • The fuel pump power connections are handled with specially designed anti-rotation high-current electrical studs.
  • Necessary ring terminals and hardware are included with every surge tank.
  • All internal wires are gasoline, ethanol, and methanol compliant.
  • Integrated mounting feet are designed to be used with M6 (or 1/4") fasteners.

Fitment Table